In [Optimization of Web Font 04 “Subsetting”], file size is reduced by deleting unnecessary characters. In addition, file size is reduced by deleting unnecessary information. GPOS, GSUB, and Hinting were particularly effective.

When not using an expression form with the use of GPOS, such as typesetting with narrowed spacing or similar shapes not using GSUB, vertical writing and ligatures, or not using hinting in the distribution for a specific environment or device, it is acceptable to delete this information.

Some font distribution services can deliver a font after deleting unnecessary features. When deleting manually, it is necessary to decide once you thoroughly understand the function of the data, as the font may fail to feature properly.

As it also constitutes modification of the font file, it is necessary to clarify font licensing and rights.

(LN)